Neutron-activated biodegradable samarium-153 acetylacetonate-poly-L-lactic acid microspheres for intraarterial radioembolization of hepatic tumors

Figure 3 The energy dispersive X-ray spectrum of the poly-L-lactic acid microspheres and samarium acetylacetonate-poly-L-lactic acid microspheres before and after 3 h neutron activation. A and B: Energy dispersive X-ray spectrum of the poly-L-lactic acid (PLLA) microspheres; C and D: samarium acetylacetonate (SmAcAc)-PLLA microspheres. Energy dispersive X-ray spectrum of the PLLA and SmAcAc-PLLA microspheres before and after 3 h neutron activation clearly show the presence of carbon and oxygen in the PLLA microspheres; and carbon, oxygen and Sm in the SmAcAc-PLLA microspheres. PLLA: Poly-L-lactic acid; SmAcAc: Samarium acetylacetonate.